Marshall county is located in north Indiana. Marshall county has 443.63 square miles of land area and 6.11 square miles of water area. As of 2010-2014, the total Marshall county population is 47,032, which has grown 4.22% since 2000. The population growth rate is lower than the state average rate of 7.60% and is much lower than the national average rate of 11.61%. Marshall county median household income is $47,219 in 2010-2014 and has grown by 10.89% since 2000. The income growth rate is much lower than the state average rate of 17.25% and is much lower than the national average rate of 27.36%. Marshall county median house value is $124,100 in 2010-2014 and has grown by 40.86% since 2000. The house value growth rate is higher than the state average rate of 30.12% and is lower than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Marshall county is better than the state average in quality. The Marshall county area code is 574.